Rosemount 3300 Series with HART to Modbus Converter

Transcription

1 Manual Supplement Rosemount 3300 Series Rosemount 3300 Series with HART to Modbus Converter Introduction page 1-3 Workflow page 1-3 Mechanical Installation page 1-3 Electrical Installation page 1-4 Transmitter Configuration page 1-7 Protocol description page 1-8 Common Modbus Host Configuration page 1-19 Specific Modbus Host Configuration page 1-24 Troubleshooting page 1-30 HMC Firmware Upgrade in Rosemount Radar Master.. page 1-31 RCT Communication with MA(+), MB(-) page 1-36 Levelmaster Protocol Description page 1-36 Specifications page 1-37 Hazardous Locations Certifications page 1-38 This instruction is a supplement to the Rosemount 3300 Series Reference Manual (Document No ). Explosions could result in death or serious injury: Verify that the operating environment of the transmitter is consistent with the appropriate hazardous locations certifications. Before connecting a HART-based communicator in an explosive atmosphere, make sure the instruments in the loop are installed in accordance with intrinsically safe or non-incendive field wiring practices. Do not remove the gauge cover in explosive atmospheres when the circuit is alive.

2 Rosemount 3300 Series Manual Supplement Failure to follow safe installation and servicing guidelines could result in death or serious injury: Make sure only qualified personnel perform the installation. Use the equipment only as specified in this manual. Failure to do so may impair the protection provided by the equipment. High voltage that may be present on leads could cause electrical shock: Avoid contact with leads and terminals. Make sure the main power to the 3300 transmitter is off and the lines to any other external power source are disconnected or not powered while wiring the gauge. Probes covered with plastic and/or with plastic discs may generate an ignition-capable level of electrostatic charge under certain extreme conditions. Therefore, when the probe is used in a potentially explosive atmosphere, appropriate measures must be taken to prevent electrostatic discharge. 1-2

3 Manual Supplement Rosemount 3300 Series INTRODUCTION The Rosemount 3300 Series transmitter is a Modbus compatible measurement device that supports communication with a Remote Terminal Unit (RTU) using a subset of read, write, and diagnostic commands used by most Modbus compatible host controllers. It also supports communication through Levelmaster ASCII protocol. The HART to Modbus Converter (HMC) module is located inside the Rosemount 3300 transmitter enclosure and provides power to and communicates with the 3300 transmitter through a HART interface. Figure 1-1. System Overview Modbus and Levelmaster communication Remote Terminal Unit 3300 transmitter electronics HART signals HART to Modbus Converter HART signals RCT/ 375 Field Communicator During normal operation, the HMC mirrors the contents of process variables from the 3300 transmitter to the Modbus registers. To configure the 3300 transmitter, it is possible to connect a configuration tool to the HMC. See Transmitter Configuration on page 1-7 for more information. WORKFLOW MECHANICAL INSTALLATION Overview of workflow for commissioning a Rosemount 3300 transmitter with Modbus protocol: 1. Mount the transmitter on the tank. 2. Connect the power and communication wires. 3. Configure the 3300 transmitter through Rosemount Radar Configuration Tools (RCT) or a 375 Field Communicator: Tank geometry, product data Communication settings 4. Configure host. 5. Verify output values as reported by the 3300 transmitter. For instructions on how to mount the Rosemount 3300 transmitter, refer to Rosemount 3300 Series Reference Manual (Document No ). 1-3

4 Rosemount 3300 Series Manual Supplement ELECTRICAL INSTALLATION NOTE For general electrical installation requirements, including grounding requirements, refer to Rosemount 3300 Series Reference Manual (Document No ). Figure 1-2. Field Wiring Connections To connect the Rosemount 3300: 1. Make sure the power supply is disconnected. 2. Remove the cover on the transmitter housing terminal side (see label). Do not remove the cover in an explosive atmosphere with a live circuit. 3. Pull the cable through the cable gland/conduit. For the RS-485 bus, use shielded twisted pair wiring, preferably with an impedance of 120Ω (typically 24 AWG) in order to comply with the EIA-485 standard and EMC regulations. The maximum cable length is 4000 ft/1200 m. 4. Make sure that the transmitter housing is grounded, then connect wires according to Figure 1-2 and Table 1-1. Connect the lead that originates from the A line from the RS-485 bus to the terminal marked MA (+), and the lead that originates from the B line to the terminal marked MB (-). 5. If it is the last transmitter on the bus, connect the 120Ω termination resistor. 6. Connect the leads from the positive side of the power supply to the terminal marked PWR +, and the leads from the negative side of the power supply to the terminal marked PWR -. The power supply cables must be suitable for the supply voltage and approved for use in hazardous areas, where applicable. 7. Attach and tighten the housing cover. Tighten the cable gland, then plug and seal any unused terminals, and connect the power supply. A B 120Ω RS-485 Bus 120Ω Power Supply HART + HART - 120Ω In case it is the last transmitter on the bus, connect the 120Ω termination resistor 1-4

5 Manual Supplement Rosemount 3300 Series Connection Terminals The connection terminals are described in Table 1-1 below: Table 1-1. Connection Terminals Connector label Description Comment HART + HART - Positive HART connector Negative HART connector Connect to PC with RCT software, 375 Field Communicator, or other HART configurators. MA (+) MB (-) PWR + PWR - Modbus RS-485 A connection (RX/TX+) (1) Modbus RS-485 B connection (RX/TX-) (1) Positive Power input terminal Negative Power input terminal Connect to RTU Apply +8 VDC to +30 VDC (1) The designation of the connectors do not follow the EIA-485 convention, which states that RX/TX- should be referred to as 'A' and RX/TX+ as 'B'. Figure 1-3. Connection Terminals for Rosemount 3300 with HART to Modbus Converter HART + HART - 1-5

6 Rosemount 3300 Series Manual Supplement RS-485 Bus The 3300 transmitter does not provide electrical isolation between the RS-485 bus and the transmitter power supply Maintain a bus topology and minimize stub length Figure 1-4 identifies multidrop wiring topology where up to 32 devices may be wired on one RS-485 bus The RS-485 bus needs to be terminated once at both ends, but should not be terminated elsewhere on the bus Figure 1-4. Multidrop Connection of 3300 Transmitters 120Ω RS-485 Bus A B 120Ω Rosemount 3300 Rosemount 3300 Rosemount 3300 Power Supply 1-6

7 Manual Supplement Rosemount 3300 Series TRANSMITTER CONFIGURATION The Rosemount 3300 can be configured using the Rosemount Configuration Tools (RCT) PC software or a 375 Field Communication Unit. Configuration is done by sending HART commands through the HART to Modbus Converter (HMC) to the 3300 transmitter electronics. To configure the 3300 transmitter, connect the communicator or PC to the HART terminals, see Figure 1-3 on page 1-5. Both the configuration tool and the RS-485 bus can be connected simultaneously. Configuration data is sent with HART commands through the HMC to the 3300 transmitter electronics, as illustrated in Figure 1-1 on page 1-3. Note that the power supply must be connected during configuration, see also Electrical Installation on page 1-4. NOTE Measurement data is not updated to the Modbus Master when a configuration tool is connected. NOTE The Rosemount 3300 can also be configured in RCT by using the MA (+), MB(-). For more information, see RCT Communication with MA(+), MB(-) on page Configuration data such as Tank Height, Upper Null Zone, dielectric constants, and other basic parameters are configured in the same way as for a standard Rosemount 3300 transmitter. For more information, see the Guided Wave Radar Level and Interface Transmitter Quick Installation Guide (Document No ). Make sure that the measurement unit of the Primary Variable (PV) matches the configuration of the Modbus Host since the transmitter output value does not include any information on associated measurement units. For further information on basic configuration, see the Rosemount 3300 Series Reference Manual (Document No ). NOTE The 3300 transmitter with Modbus protocol is configured to HART short address 1 at factory. This reduces power comsumption by locking the analog output at 4 ma. 1-7

8 Rosemount 3300 Series Manual Supplement PROTOCOL DESCRIPTION The Rosemount 3300 level transmitter can communicate with RTUs using Modbus RTU (often referred to as just Modbus ), Modbus ASCII, and Levelmaster (also known as Siemens or Tank protocol). Table 1-2. List of RTUs Supported Protocols RTU ABB Totalflow Bristol ControlWave Micro Fisher ROC Kimray DACC 2000/3000 ScadaPack Thermo Electron Autopilot Protocols Modbus RTU, Levelmaster Modbus RTU Modbus RTU Levelmaster Modbus RTU Modbus RTU, Levelmaster Modbus ASCII is not commonly used, since it doubles the amount of bytes for the same message as the Modbus RTU. If you do not have any of these RTUs, check your RTU manual to see which protocols it supports. Proceed to the chapter where setup of the protocol is described. Modbus RTU Communication Setup The Rosemount 3300 is configured with the default Modbus RTU address 246. The 3300 is configured with the following Modbus RTU communication parameter default setting: Table 1-3. Modbus RTU Communication Parameters Parameter Default Value Configurable Values Baud Rate , 2400, 4800, 9600, Start Bits (1) One One Data Bits (1) Eight Eight Parity None None, Odd, Even Stop Bits One One or Two Address range (1) Start Bits and Data Bits cannot be changed. NOTE It takes 30 seconds for a change of Modbus RTU communication parameters to take effect. 1-8

9 Manual Supplement Rosemount 3300 Series Using the RCT Setup to change Modbus RTU communication parameters NOTE To change Modbus RTU communication parameters, the Rosemount 3300 must use HART address 1, the default address. To change the Modbus RTU address and communication parameters (1) in the Rosemount Configuration Tool (RCT): 1. Start the RCT. 2. In the RCT workspace Project Bar, click the Setup icon to open the Setup window: Modbus setup 3. Select the Output tab. 4. Click the Modbus Setup button. 5. In the Modbus Setup window, type the desired Modbus RTU address. 6. Enter the baude rate, parity, and stop bits, then click the OK button. (1) The Modbus Setup function is available in RCT version and later. 1-9

10 Rosemount 3300 Series Manual Supplement Using a Rosemount 375 Field Communicator to change Modbus RTU communication parameters When using the 375 Field Communicator, the Message Area is available with HART command [1,4,1,6]: Figure 1-5. Message Area is Available via HART Command Online Menu 1 DEVICE SETUP 2PV 3AO 4LRV 5URV 1 Process Variables 2 Diag/Service 3 Basic Setup 4 Detailed Setup 5Review 1Device Information 2 Display 3 Volume Geometry 4HART 5 Advanced Service 1 Distributor 2 Model 3Dev Id 4Tag 5 Descriptor 6 Message 7Date 8 Write Protect 9 Revision # s - Construction Details For example: You want to use address 44 for the 3300 transmitter, and the following communication parameters are used by the host: Table 1-4. Communication Parameters Used by the Host (example) Parameter Value Baud Rate 4800 Start Bits One Data Bits Eight Parity Odd Stop Bits Two To configure the 3300 transmitter to communicate with the Host in this example, the following text string is written to the HART Slave 1 Message Area: HMC A44 B4800 PO S2. Note: Only values that differ from the current values need to be included in the text string. HMC: These three letters are used for safety and will eliminate the risk of changing the configuration data by mistake. A44: A indicates that the following number is the new address (address 44). Leading zeroes are not needed. B4800: B indicates that the following number is the new baud rate (1200, 2400, 4800, 9600, 19200). PO: P identifies the following letter as parity type (O = odd, E = even, and N = none). 1-10

11 Manual Supplement Rosemount 3300 Series S2: S indicates that the following figure is the number of stop bits (1 = one, 2 = two). Only values that differ from the current values need to be included. For example, if only the address is changed, the following text string is written into the 3300 (HART Slave 1) Message Area: HMC A127, indicates that 127 is the new address. Modbus ASCII Communication Setup Modbus ASCII communication setup can be carried out using the Rosemount Configuration Tool (RCT). The parameter, default, and configurable values are shown in Table 1-5 below. NOTE It takes 30 seconds for a change of Modbus communication parameters to take effect. NOTE To change Modbus ASCII communication parameters, the Rosemount 3300 must use HART address 1, the default address. Table 1-5. Modbus ASCII Communication Parameters Parameter Default value Configurable values Baud Rate , 2400, 4800, 9600, Start Bits One One Data Bits Seven Seven, Eight Parity None None, Odd, even Stop Bits One One or Two Address

12 Rosemount 3300 Series Manual Supplement Using the RCT Setup to change Modbus communication parameters To change the Modbus address and communication parameters in the Rosemount Configuration Tool (RCT): 1. Start the RCT. 2. In the RCT workspace Project Bar, click the Setup icon to open the Setup window: Modbus setup 3. Select the Output tab. 4. Click the Modbus Setup button. Modbus ASCII Parameter Configuration Example on page 1-13 shows how to enter messages in this area. 1-12

13 Manual Supplement Rosemount 3300 Series Modbus ASCII Parameter Configuration Example Example: You want to use address 246 for the 3300 transmitter and the host uses the following parameters: Table 1-6. Parameters Used by the Host (in case of Modbus ASCII, example) Parameter Value Baud Rate 9600 Start Bits One Data Bits Seven Parity None Stop Bits One To configure the 3300 transmitter to communicate with the Host in this example, the following text string is written to the Modbus Message area. HMC M1 A246 B9600 D7 PN S1. NOTE Include all the parameters when writing to the message area. Note that an address must be unique on the bus. HMC: These three letters are used for safety and will eliminate the risk of changing the configuration data by mistake. M1: This means that the Modbus ASCII protocol is to be used. A246: A indicates that the following number is the new address (address 246). Leading zeroes are not needed. B9600: B indicates that the following number is the new baud rate (1200, 2400, 4800, 9600, 19200). D7: D indicates that the following data bits are to be used (7 = seven, 8 = eight). PN: P identifies the following letter as parity type (O = odd, E = even, and N = none). S1: S indicates that the following figure is the number of stop bits (1 = one, 2 = two). Note: Start Bits are not configurable and cannot be set. 1-13

14 Rosemount 3300 Series Manual Supplement Using a Rosemount 375 Field Communicator to change Modbus ASCII communication parameters When using the 375 Field Communicator, the Message Area is available with HART command [1,4,1,6]. In the message area Modbus ASCII parameters can be configured as described in Modbus ASCII Parameter Configuration Example on page Figure 1-6. HART Command [1,4,1,6] Online Menu 1 DEVICE SETUP 2PV 3AO 4LRV 5URV 1 Process Variables 2 Diag/Service 3 Basic Setup 4 Detailed Setup 5Review 1Device Information 2 Display 3 Volume Geometry 4HART 5 Advanced Service 1 Distributor 2 Model 3Dev Id 4Tag 5 Descriptor 6 Message 7Date 8 Write Protect 9 Revision # s - Construction Details 1-14

15 Manual Supplement Rosemount 3300 Series Levelmaster Communication Setup Use the Rosemount Configuration Tool (RCT) to setup Levelmaster communication. The default and configurable parameter values can be found in Table 1-7. NOTE It takes 30 seconds for a change of Levelmaster communication parameters to take effect. NOTE To change Levelmaster communication parameters, the Rosemount 3300 must use HART address 1, the default address. Table 1-7. Levelmaster Communication Parameters Parameter Default value Configurable value Baud Rate , 2400, 4800, 9600, Start Bits One One Data Bits Seven Seven, Eight Parity None None, Odd, Even Stop Bits One One or Two Address

16 Rosemount 3300 Series Manual Supplement Using the RCT Setup to change Levelmaster communication parameters To change the Levelmaster address and communication parameters in the Rosemount Configuration Tool (RCT): 1. Start the RCT. 2. In the RCT workspace Project Bar, click the Setup icon to open the Setup window: Modbus setup 3. Select the Output tab. 4. Click the Modbus Setup button. Levelmaster Parameter Configuration Example on page 1-17 shows how to enter messages in this area. 1-16

17 Manual Supplement Rosemount 3300 Series Levelmaster Parameter Configuration Example Example: You want to use address 2 for the 3300 transmitter and the host uses the following parameters: Table 1-8. Parameters Used by the Host (in case of Levelmaster, example) Parameter Value Baud Rate 9600 Start Bits One Data Bits Seven Parity None Stop Bits One To configure the 3300 transmitter to communicate with the Host in this example, the following text string is written to the Modbus Message area. HMC M2 A2 B9600 D7 PN S1. NOTE Include all the parameters when writing to the message area. Note that an address must be unique on the bus. HMC: These three letters are used for safety and will eliminate the risk of changing the configuration data by mistake. M2: This means that the Levelmaster protocol is to be used. A2: A indicates that the following is the new address (address 2). Leading zeroes are not needed. B9600: B indicates that the following number is the new baud rate (1200, 2400, 4800, 9600, 19200). D7: D indicates that the following data bits are to be used (7 = seven, 8 = eight). PN: P identifies the following letter as parity type (O = odd, E = even, and N = none). S1: S indicates that the following figure is the number of stop bits (1 = one, 2 = two). Note: Start Bits are not configurable and cannot be set. 1-17

18 Rosemount 3300 Series Manual Supplement Using a Rosemount 375 Field Communicator to change Levelmaster communication parameters When using the 375 Field Communicator, the Message Area is available with HART command [1,4,1,6]. In the message area Levelmaster parameters can be configured as described in Levelmaster Parameter Configuration Example on page Figure 1-7. HART Command [1,4,1,6] Online Menu 1 DEVICE SETUP 2PV 3AO 4LRV 5URV 1 Process Variables 2 Diag/Service 3 Basic Setup 4 Detailed Setup 5Review 1Device Information 2 Display 3 Volume Geometry 4HART 5 Advanced Service 1 Distributor 2 Model 3Dev Id 4Tag 5 Descriptor 6 Message 7Date 8 Write Protect 9 Revision # s - Construction Details NOTE See Detailed Levelmaster information section for more detailed protocol specifications. 1-18

19 Manual Supplement Rosemount 3300 Series Host specific information Kimray DACC 2000/3000 This table shows input types in Kimray IMI software and the corresponding value. The communication port must be configured to use Tank Levels protocol. Table 1-9. Kimray Input Types and Corresponding Values COMMON MODBUS HOST CONFIGURATION Kimray Inp type 3300 variable Format Tank Level1 PV ddd.dd.alt. -dd.dd Tank Level2 SV ddd.dd.alt -dd.dd When using Modbus RTU or Modbus ASCII, the registers to receive status and variables must be configured in the host system. The transmission of single-precision (4 bytes) IEEE 754 floating point numbers can be rearranged in different byte orders specified by the Floating Point Format Code. The format code information, stated for each Remote Terminal Unit (RTU) respectively, specifies which registers to poll from the 3300 transmitter in order for the RTU to correctly interpret floating point numbers. The byte transmission order for each format code is demonstrated in Table 1-10 below. Table Byte Transmission Order is Specified by the Floating Point Format Code Format Code 0 ABCD 1 CDAB 2 DCBA 3 BADC Byte transmission order NOTE Some Modbus hosts cannot read the information described here using input Registers (Modbus function code 4). The Input Register information can also be read using Holding Register (Function code 3). In this case, Input Register number is used as Holding Register number. Input Registers The register area starting with 1300 can be configured to have any of the four format codes. The configuration is done by setting FloatingPointFormatCode register (holding register 3000) to 0-3, as shown in Table This configuration can be done with the Rosemount Radar Master program. NOTE Depending on the slave number the 3300 transmitter is using, different registers must be used with the default slave number being

20 Rosemount 3300 Series Manual Supplement Table Output Variables for the Configurable Floating Point Format Code Register Name Slave 1 Status Conf Register Number 1300 Slave 1 PV Conf 1302 Slave 1 SV Conf 1304 Slave 1 TV Conf 1306 Slave 1 FV Conf 1308 Note Bit information in bitfield. Bit 0: Invalid Measurement Slave 1 PV. Bit 1: Invalid Measurement Slave 1 Non PV. Bit 2: Invalid Measurement Slave 1 Non PV. Bit 3: Invalid Measurement Slave 1 Non PV. Bit 14: HART bus busy (slave in burst or other master present) Bit 15: HTM Task not running (option not available). Note: Bit 1-3 is set when Invalid Measurement of Slave 1 Non PV. i.e. all three bits are set simultaneously. Primary variable from slave 1 represented in IEEE 754 format, using the byte order set in the FloatingPointFormatCode register. Secondary variable from slave 1 represented in IEEE 754 format, using the byte order set in the FloatingPointFormatCode register. Tertiary variable from slave 1 represented in IEEE 754 format, using the byte order set in the FloatingPointFormatCode register. Fourth variable from slave 1 represented in IEEE 754 format, using the byte order set in the FloatingPointFormatCode register. Slave 2 data Same data as for Slave 1. Slave 3 data Same data as for Slave 1. Slave 4 data Same data as for Slave 1. Slave 5 data Same data as for Slave 1. The Rosemount 3300 register area starting with register 2000 is used for hosts that require Floating Point Format Code 0 (see Table 1-12). When Floating Point Format Code 1 is required, the register area starting with register 1400 is used (see Table 1-13). Floating Point Format Codes 2 and 3 use register areas 2100 and 2200, respectively (see Table 1-14 and Table 1-15). 1-20

21 Manual Supplement Rosemount 3300 Series Table Output Variables for Floating Point Format Code 0 Register Name Register Number Note Slave 1 Status 2000 Bit information in bitfield: Bit 0: Invalid Measurement Slave 1 PV. Bit 1: Invalid Measurement Slave 1 SV. Bit 2: Invalid Measurement Slave 1 TV. Bit 3: Invalid Measurement Slave 1 FV. Bit 14: HART bus busy (slave in burst or other master present) Bit 15: HTM Task not running (option not available). Note: Bit 1-3 is set when Invalid Measurement of Slave 1 Non PV, i.e. all three bits are set simultaneously. Slave 1 PV 2002 Primary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 0. Slave 1 SV 2004 Secondary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 0. Slave 1 TV 2006 Tertiary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 0. Slave 1 FV (QV) 2008 Fourth variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 0. Table Output Variables for Floating Point Format Code 1 Register Name Register Number Note Bit information in bitfield: Bit 0: Invalid Measurement Slave 1. Bit 1: Invalid Measurement Slave 2. Bit 2: Invalid Measurement Slave 3. Bit 3: Invalid Measurement Slave 4. Bit 4: Invalid Measurement Slave 5. Bit 8: Slave with short address 0 is used, but not alone on bus. Only one HART slave can be connected on the bus if the slave is in Analog Current mode (this is Slave Status 1400 the case if short address = 0 by HART definition). Bit 9: Slave with short address > 5 detected on bus. Maximum of five HART Slaves can be connected on the HART Bus. Their short address MUST be between 1 and 5. Bit 14: HART bus busy (slave in burst or other master present) Bit 15: HTM Task not running (option not available). Slave 1 PV 1402 Primary variable from slave

22 Rosemount 3300 Series Manual Supplement Register Name Register Number Note Slave 1 SV 1414 Secondary variable from slave 1. Slave 1 TV 1426 Tertiary variable from slave 1. Slave 1 FV (QV) 1438 Fourth variable from slave 1. Table Output Variables for Floating Point Format Code 2 Register Name Register Number Note Slave 1 Status 2100 Bit information in bitfield: Bit 0: Invalid Measurement Slave 1 PV. Bit 1: Invalid Measurement Slave 1 SV. Bit 2: Invalid Measurement Slave 1 TV. Bit 3: Invalid Measurement Slave 1 FV. Bit 14: HART bus busy (slave in burst or other master present) Bit 15: HTM Task not running (option not available). Note: Bit 1-3 is set when Invalid Measurement of Slave 1 Non PV, i.e. all three bits are set simultaneously. Slave 1 PV 2102 Primary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 2. Slave 1 SV 2104 Secondary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 2. Slave 1 TV 2106 Tertiary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 2. Slave 1 FV (QV) 2108 Fourth variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code

23 Manual Supplement Rosemount 3300 Series Table Output Variables for Floating Point Format Code 3 Register Name Register Number Note Slave 1 Status 2200 Bit information in bitfield: Bit 0: Invalid Measurement Slave 1 PV. Bit 1: Invalid Measurement Slave 1 SV. Bit 2: Invalid Measurement Slave 1 TV. Bit 3: Invalid Measurement Slave 1 FV. Bit 14: HART bus busy (slave in burst or other master present) Bit 15: HTM Task not running (option not available). Note: Bit 1-3 is set when Invalid Measurement of Slave 1 Non PV, i.e. all three bits are set simultaneously. Slave 1 PV 2202 Primary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 3. Slave 1 SV 2204 Secondary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 3. Slave 1 TV 2206 Tertiary variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 3. Slave 1 FV (QV) 2208 Fourth variable from slave 1 represented in IEEE 754 format, using Floating Point Format Code 3. Measurement Units Measurement units for the various HART slaves are stored in input registers as a Unit Code presented in Table Conversion from Unit Code to measurement unit is given in Table 1-17 on page Table Measurement units and corresponding input registers Register Name Register Number Note Slave 1 PV Units 104 Slave 1 SV Units 108 See Table 1-17 for conversion from Unit Slave 1 TV Units 112 Code to Measurement Unit. Slave 1 FV (QV) Units

24 Rosemount 3300 Series Manual Supplement Table Conversion of Unit Code to Measurement Unit Unit Code Measurement Unit Unit Code Measurement Unit Volume Length 40 US Gallon 44 Feet 41 Liters 45 Meters 42 Imperial Gallons 47 Inches 43 Cubic Meters 48 Centimeters 46 Barrels 49 Millimeters 111 Cubic Yards Temperature 112 Cubic Feet 33 Degree Fahrenheit 113 Cubic Inches 32 Degree Celcius SPECIFIC MODBUS HOST CONFIGURATION The Remote Terminal Unit needs to be configured to communicate and correctly interpret data when reading input registers from the Rosemount 3300 transmitter. Baud Rate The specified Baud Rates below are recommendations. If other Baud Rates are used, make sure that the 3300 and the RTU are configured for the same communication speed. Floating Point Format Code See Section Common Modbus Host Configuration on page RTU Data Type The RTU Data Type specifies which configuration to use in the RTU in order for the RTU to correctly interpret a floating point number transmitted from the 3300 transmitter with Modbus. Input Register Base Number Data registers in the 3300 transmitter with Modbus are numbered exactly as they are transmitted in the Modbus communication. Some RTUs use different naming conventions and to configure the RTU to poll the correct registers from the 3300 Modbus, an Input Register Base Number is stated for each RTU respectively. E.g. if the input register base number is 1 for the RTU, the 3300 Modbus input register 1402 has to be entered in the RTU address as input register

25 Manual Supplement Rosemount 3300 Series Fisher ROC 809 Figure 1-8. Wiring Diagram for Connecting 3300 Modbus to Fischer ROC 809 Power Supply Table Parameter Values (in case of Fisher ROC 809) Parameter Value Baud Rate 9600 Floating Point Format Code 0 RTU Data Type Conversion Code 66 Input Register Base Number 0 The Input Register Base Number needs to be added to the Input Register address of the 3300 transmitter. In this case, register 1300 needs to have 1300 entered as the address. 1-25

26 Rosemount 3300 Series Manual Supplement ABB TotalFlow Figure 1-9. Wiring diagram for connecting 3300 Modbus to ABB TotalFlow Table Parameter Values (in case of ABB TotalFlow) Parameter Value Baud Rate 9600 Floating Point Format Code 0 RTU Data Type 16 Bit Modicon Input Register Base Number 1 The Input Register Base Number needs to be added to the Input Register address of the 3300 transmitter. In this case, register 1302 needs to have 1303 entered as the address etc. 1-26

27 Manual Supplement Rosemount 3300 Series Thermo Electron Autopilot Figure Wiring Diagram for Connecting 3300 Modbus to Thermo Electron Autopilot Power Supply Table Parameter Values (in case of Thermo Electron Autopilot) Parameter Value Baud Rate 9600 Floating Point Format Code 1 RTU Data Type IEEE Flt 2R Input Register Base Number 0 The Input Register Base Number needs to be added to the Input Register address of the 3300 transmitter. In this case, register 1302 needs to have 1302 entered as the address etc. 1-27

28 Rosemount 3300 Series Manual Supplement Bristol ControlWave Micro Figure Wiring Diagram for Connecting 3300 Modbus to Bristol ControlWave Micro Power Supply DB9 Male Table Parameter Values (in case of Bristol ControlWave Micro) Parameter Baud Rate 9600 Floating Point Format Code 2 (FC 4) Value RTU Data Type 32-bit registers as 2 16-bit registers Input Register Base Number 1 The Input Register Base Number needs to be added to the Input Register address of the 3300 transmitter. In this case, register 1302 needs to have 1303 entered as the address etc. 1-28

29 Manual Supplement Rosemount 3300 Series ScadaPack Figure Wiring Diagram for Connecting 3300 Modbus to SCADAPack 32 Power Supply Table Parameter Values (in case of SCADAPack 32) Parameter Value Baud Rate 9600 Floating Point Format Code 0 RTU Data Type Floating Point Input Register Base Number The Input Register Base Number needs to be added to the Input Register address of the 3300 transmitter. In this case, register 1302 needs to have entered as the address etc. 1-29

30 Rosemount 3300 Series Manual Supplement TROUBLESHOOTING No communication on RS-485 bus (MA, MB) Check that the cables are connected Check that PWR+ is connected to + and PWR- is connected to - on the power supply Make sure the 3300 transmitter is supplied with 8-30 VDC Try alternating MA/MB if you are unsure of the polarity If an RS-232/RS-485 converter is used, make sure it is properly installed and configured The last 3300 transmitter may need a terminating 120Ω resistor connected between MA and MB No 3300 communication in RCT Using HART+, HART- HART modem is not properly connected Polling address is incorrect in RCT (default 1) Using MA (+), MB (-) See No communication on RS-485 bus Polling address is incorrect in RCT (default 1) Cycle the power and wait 20 seconds before polling No communication with Modbus RTU protocol See No communication on RS-485 bus Make sure the Modbus RTU Communication Setup is done properly Make sure the Modbus RTU address is unique on the bus Cycle the power and try to connect Check the RTU communication settings No communication with Modbus ASCII protocol See No communication on RS-485 bus Make sure the Modbus ASCII Communication Setup is done properly Make sure the Modbus ASCII address is unique on the bus Cycle the power, waiting 40 seconds before communication begins Check the RTU communication settings No communication with Levelmaster protocol See No communication on RS-485 bus Make sure the Levelmaster Communication Setup is done properly Make sure the Levelmaster address is unique on the bus Cycle the power, waiting 40 seconds before communication begins Check the RTU communication settings 1-30

31 Manual Supplement Rosemount 3300 Series HMC FIRMWARE UPGRADE IN ROSEMOUNT RADAR MASTER The HMC s firmware is upgraded with Rosemount Radar Master (RRM). A detailed description on how to carry out the firmware upgrade is shown on the following pages. NOTE During firmware upgrade, the HMC Modbus RTU address must be 246, the default address. Make sure to disconnect other Modbus RTU devices that are connected and have address 246. NOTE Do not interrupt communication between the PC and the 3300 level transmitter during the firmware upload. 1. Connect the HMC to a PC as described in Electrical Installation, Connection Terminals, and RS-485 bus on page Start RRM and open the Search Device window. 3. Click the Settings button in the Search Device window. 1-31

32 Rosemount 3300 Series Manual Supplement 4. Ensure that the above communication settings are used. 5. Open the Search Device window. 6. Search for HMCs by selecting Scan Address Range, and choose a start and end address for Modbus. The default HMC Modbus address is Click the Start Scan button. 8. Click OK to connect when the device is found. 1-32

33 Manual Supplement Rosemount 3300 Series 9. From the Service menu, choose the Enter Service Mode option. 10. Type password, admin. 11. From the Service menu, choose the Upload Firmware option. 12. Click Browse. 13. Select the upgrade.cry file. 14. Click Open. 1-33

34 Rosemount 3300 Series Manual Supplement 15. Click the Upload button to start the firmware upgrade. 16. When upload is finished, click the alert symbol. Checksum 17. Click Device Errors and check for Checksum. 18. If it is on the list, choose the Factory Settings option from the Tools menu. 1-34

35 Manual Supplement Rosemount 3300 Series 19. Select All and click OK. 20. Select Yes. 21. The Checksum error will no longer be on the list. 22. Now you can start using the HMC. 1-35

36 Rosemount 3300 Series Manual Supplement RCT COMMUNICATION WITH MA(+), MB(-) The 3300 level transmitter can be configured with RCT using the MA (+), MB (-) connectors. When the power and communication wires are connected, start configuring the transmitter using the RCT. NOTE The 3300 level transmitter must use HART address 1 to communicate with the NOTE Switch the power off, then switch it on and wait 20 seconds before connecting to the This can be done by clicking the Search for Device button in RCT. The PC communicates with the 3300 by tunnelling the HART protocol over RS-485, using a RS-232/RS-485 Converter. To communicate with the 3300 transmitter, the COM port used for serial communication (RS-232) must be selected in RCT. Check the Device Manager in Windows if you are unsure which COM port to use. See Help, Contents in RCT to see how to use a specific COM port. NOTE Make sure the 3300 transmitter is alone on bus. Disconnect or turn off power from any other devices. LEVELMASTER PROTOCOL DESCRIPTION Implemented functions of the Levelmaster protocol Here is a description of the implemented functions of Levelmaster protocol in the HMC. Table Implemented Functions of Levelmaster Protocol Input format Description Output format UnnN? Return ID number UnnNnnCcccc UnnNmm Set ID number UnnNOKCcccc UnnF? Return number of floats UnnFxCcccc UnnFx? Set number of floats UnnFOKCcccc Unn? Return floats and other data UnnDddd.ddFfffEeeee WwwwCcccc (1) (1) In this case, number of floats is set to 1. If number of floats is set to 2, the Output Format would be: UnnDddd.ddDddd.ddFfffEeeeeWwwwCcccc NOTE If one float is sent, it is Float1. If two floats are sent, it is Float 1 before Float

37 Manual Supplement Rosemount 3300 Series Explanation of letters and expressions used in previous tables: Table Letters and Expressions Used in Previous Tables Letter Description nn is used to identify slave to respond, nn is a number or ** (wildcard). nn The EmulCtrl Address Holding register can be configured to a higher value than 99. In that case, the address will be truncated to 99. mm mm is the new ID number for the slave; mm is a number x cccc x is the number of floats returned when slave receives Unn?, x is a number 0-2. Is the 16 bit CRC checksum, cccc are hexadecimal characters. ddd.dd ddd.dd is the distance value from slave 1. Note that the first d can also be a - (minus). Float 1 Slave 1 PV. Float 0 Slave 1 SV. fff The temperature value. Configured by Holding Register 3208 in HMC. (1) eeee Wwww An error value. Bit 0: Invalid SV value (Float 0). Bit 8: Invalid Temperature value. Bit 12: Invalid PV value (Float 1). A warning value, not used in this implementation. (1) Any of the four available variables from any of the five HART slaves can be selected as the temperature source. The least four significant bits (bit 0-3) select the variable number. Bits 4-7 select the HART slave address. If invalid values are used, the temperature value will be invalid, with no Error bit set. For example, if we want to use FV from HART Slave 3 as temperature source, we have to write the value 34 Hex (52 decimal). SPECIFICATIONS Table Specifications Power consumption Signal wiring Power supply cabling Bus termination < 0.5 W (with HART adress=1) Two-wire half duplex RS-485 Modbus. Use shielded twisted pair wiring, preferably with an impedance of 120Ω (typically 24 AWG), in order to comply with EIA-485 standard and EMC regulations. The power supply cables must be suitable for the supply voltage and approved for use in hazardous areas, where applicable. Standard RS-485 bus termination per EIA-485 See the Rosemount 3300 Series Reference Manual (Document No ) for further specifications. 1-37

38 Rosemount 3300 Series Manual Supplement HAZARDOUS LOCATIONS CERTIFICATIONS The Rosemount 3300 Series Guided Wave Radar Level and Interface Transmitters that have the following labels have been certified to comply with the requirements of the noted approval agencies. Factory Mutual (FM) Approvals Project ID: Figure Approval Labels Factory Mutual (FM) and Name Plate For connection in ambients above 70 C, use wiring rated for 90 C minimum. E5 Explosion-proof for use in Class I, Div. 1, Groups B, C, and D; Dust-ignition-proof for use in Class II/III, Div. 1, Groups E, F, and G; With Intrinsically Safe connections to Class I, II, III, Div. 1, Groups A, B, C, D, E, F, AND G. Temperature class +85 C. Ambient temperature limits: -50 C to + 85 C. Factory Sealed. Approval valid for Modbus and HART option. 1-38

39 Manual Supplement Rosemount 3300 Series ATEX APPROVAL Figure Approval Label ATEX Approval and Name Plate E1 Flameproof: II 1/2 GD T80 C. EEx d [ia] IIC T6 (-40 C<T a <+75 C). KEMA 01ATEX2220X. U m = 250 V. Approval valid for Modbus and HART option. SPECIAL CONDITIONS FOR SAFE USE (X): When used in a potentially explosive atmosphere where the use of equipment-category 1 apparatus is required, appropriate measures must be taken to prevent electrostatic discharge. 1-39

40 Rosemount 3300 Series Manual Supplement CANADIAN STANDARDS ASSOCIATION (CSA) APPROVAL Figure Approval Label Canadian Standards Association (CSA) Approval and Name Plate Cert. no E6 Explosion-proof: Class I, Div. 1, Groups C and D. Dust-ignition-proof: Class II, Div. 1 and 2, Groups G and coal dust. Class III, Div. 1, Haz. Loc. [Ex ia IIC T6]. Ambient temperature limits -50 C to +85 C. Factory sealed. Approval valid for Modbus and HART option. 1-40

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42 Rosemount 3300 Series Manual Supplement The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount and the Rosemount logotype are registered trademarks of Rosemount Inc. PlantWeb is a registered trademark of one of the Emerson Process Management group of companies. Teflon, VITON, and Kalrez are registered trademarks of DuPont Performance Elastomers. Asset Management Solutions is a trademark of Emerson Process Management. All other marks are the property of their respective owners. Standard Terms and Conditions of Sale can be found at Rosemount Inc. All rights reserved. Emerson Process Management Rosemount Measurement 8200 Market Boulevard Chanhassen MN USA Tel (USA) Tel (International) F Emerson Process Management Shared Services Ltd Heath Place Bognor Regis West Sussex PO22 9SH England Tel +44 (1243) Fax +44 (1243) Emerson Process Management Asia Pacific Pte Ltd 1 Pandan Crescent Singapore Tel Fax Service Support Hotline: Enquiries@AP.EmersonProcess.com Rev BA 09/08